HMCG88AEBRA168N - 32GB DDR5 4800 ECC RDIMM | SK hynix
料号： HMCG88AEBRA168N ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $154.99 | $154.99 |
| 10 | $147.24 | $1,472.40 |
| 100 | $139.49 | $13,949.00 |
| 500 | $132.74 | $66,370.00 |
| 1,000 | $126.09 | $126,090.00 |
HMCG88AEBRA168N 概述
DDR5 RDIMM (Registered Dual In-line Memory Module) is the enterprise-class memory standard for servers and workstations. Unlike consumer UDIMMs, an RDIMM uses a register to buffer address and command signals, reducing electrical load on the memory controller and enabling higher module counts per channel. DDR5 doubles the number of independent channels per DIMM versus DDR4 (two 32-bit subchannels) and moves the power management IC (PMIC) onto the module, improving signal integrity and power efficiency at the 1.1V operating voltage.
Key features of the HMCG88AEBRA168N include 32GB capacity in a dual-rank x8 organization, ECC (Error Correcting Code) for detecting and correcting single-bit memory errors that could otherwise crash a server, 4800 MT/s data rate conforming to the PC5-38400 DDR5 speed grade, and CL40 CAS latency. The 1.1V standard DDR5 voltage keeps power draw and thermal output low in dense chassis.
The registered architecture and on-die ECC make this module suited to data-intensive workloads where uptime matters: virtualization hosts, database servers, and high-memory-density blade systems. Dual-rank organization improves effective bandwidth through interleaving in many server workloads.
Typical applications include enterprise rack servers, hyper-converged infrastructure, cloud compute nodes, and workstation memory upgrades requiring validated ECC RDIMMs.
Design and procurement consideration: always verify that the target server platform (CPU and BIOS) supports DDR5-4800 RDIMMs and the installed rank count per channel, as population rules affect achievable speed. Note that RDIMMs are not interchangeable with consumer UDIMMs or LRDIMMs.
This page consolidates distributor pricing, cross-referenced drop-in alternatives, and practical deployment notes not found in a single manufacturer listing, so engineers and IT buyers can validate compatibility in one place.
直接替换替代料： HMCG88AEBRA168N ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
HMCG88AEBRA115N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88MEBRA107N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88MEBRA110N
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88MEBRA
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88AEBRA168N-ATC
✅ 直接替换📋 参考替代料（不在目录中）
HMCG88AEBRA168N 规格参数
| Capacity | 32 GB |
| 存储器类型 | DDR5 SDRAM |
| Form Factor | 288-pin RDIMM |
| Speed | 4800 MHz (PC5-38400) |
| CAS 延迟 | CL40 |
| ECC | Yes (ECC Registered) |
| Operating Voltage | 1.1 V |
| Rank | 2Rx8 (dual rank); some listings state 1Rx4 - see validation note |
| Bandwidth | 38400 MB/s |
| Module Class | Registered DIMM (RDIMM) |
| Application | Server / Workstation |
| 存储组织 | x8 |
| 引脚数量 | 288 |
| Modules per Kit | 1 |
| Compatible Machine Type | Server |
HMCG88AEBRA168N standard 引脚配置指南
HMCG88AEBRA168N（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： HMCG88AEBRA168N.
请参阅 数据手册 以查看完整引脚配置。
典型应用
HMCG88AEBRA168N 适用于 6 应用s: Enterprise Rack Servers, Virtualization Hosts, Database Servers, Cloud and Data Center Compute Nodes, Workstation Memory Upgrades, Storage and Backup Appliances.
Enterprise Rack Servers
The HMCG88AEBRA168N fits enterprise rack servers built on Intel Xeon Scalable or AMD EPYC platforms that require DDR5-4800 ECC Registered DIMMs. Its 32GB capacity per module and dual-rank organization allow administrators to populate 8-16 DIMM slots for 256GB-512GB per node, while 4800 MT/s bandwidth (PC5-38400, 38400 MB/s) keeps memory latency (CL40 at 1.1V) low enough for virtualization and database workloads. ECC protection corrects single-bit errors that would otherwise crash a production host. Because it is a standard 288-pin RDIMM at 1.1V, installation requires no configuration beyond slot population rules; mixed-rank deployments may downclock to a lower speed grade, so populate channels uniformly for full DDR5-4800 operation.
推荐
Virtualization Hosts
Hypervisor hosts (VMware ESXi, KVM, Hyper-V) benefit directly from the HMCG88AEBRA168N's combination of 32GB density, ECC, and DDR5-4800 throughput. Virtual machines amplify memory pressure, so per-GB cost and reliability dominate the memory BOM; the RDIMM's registered buffering sustains signal integrity across fully populated channels, and ECC prevents host crashes from bit flips that would simultaneously affect dozens of guests. At 1.1V, a 16-module deployment draws materially less DRAM power than an equivalent DDR4-3200 pool, easing PSU and cooling budgets in dense chassis. Plan rank population per the CPU's memory map: dual-rank modules like this one improve bandwidth through interleaving but limit maximum modules per channel on some platforms.
推荐
Database Servers
In-memory and buffer-pool-heavy databases (SQL Server, Oracle, PostgreSQL) are among the most demanding consumers of server DRAM, and the HMCG88AEBRA168N addresses both the capacity and reliability axes. Its ECC Registered architecture is typically a hard requirement for database platforms because an uncorrected memory error can silently corrupt an index or transaction log. The 4800 MT/s data rate and dual-rank x8 organization deliver high sustained bandwidth for scan-heavy queries, while CL40 at 1.1V keeps access latency competitive. Deploy in matched sets per memory channel and enable platform memory mirroring/RAID modes where the application demands zero-downtime fault tolerance; note that mirroring halves usable capacity, so size module counts accordingly.
推荐
Cloud and Data Center Compute Nodes
Hyperscale and colocation operators standardize on validated RDIMM SKUs such as the HMCG88AEBRA168N to simplify spares pooling and RMA logistics across thousands of nodes. The module's mainstream DDR5-4800 / PC5-38400 / CL40 profile is supported by both current Xeon and EPYC generations, so a single part number can serve mixed fleets. On-module DDR5 PMIC architecture improves power delivery versus DDR4 and, combined with the 1.1V bus, reduces per-module thermal load in high-density 1U/2U chassis. For procurement, A-Tech certified equivalents (HMCG88AEBRA168N-ATC) provide a QA-tested second source when OEM stock is constrained, though enterprise support contracts may mandate OEM parts.
推荐
Workstation Memory Upgrades
High-end workstations based on AMD Threadripper PRO or Intel Xeon W use ECC Registered DDR5, making the HMCG88AEBRA168N a direct-fit upgrade for CAD, simulation, and AI development machines that address tens of gigabytes of working sets. Four modules yield 128GB per workstation; the 4800 MT/s rate benefits rendering, finite-element analysis, and large-model compilation, while ECC guards long-running simulations against silent bit errors that would invalidate results. A-Tech explicitly qualifies its HMCG88AEBRA168N equivalent for 'Server/Workstation Systems.' Verify the motherboard QVL and maximum speed per populated rank before upgrading, as Threadripper PRO platforms may downclock with high module counts.
推荐
Storage and Backup Appliances
Enterprise NAS and backup appliances (deduplication, replication, ZFS-class ARC caching) scale performance with available RAM, and the HMCG88AEBRA168N provides cost-effective 32GB increments of ECC-protected DDR5-4800. Deduplication tables and ZFS adaptive replacement caches live in DRAM, where an uncorrected error can corrupt the on-disk pool - ECC Registered memory is therefore a baseline requirement for this class of appliance. The module's 1.1V operation and low thermal profile suit compact storage enclosures with limited airflow. Size the cache tier in 32GB steps and populate channels evenly to maximize effective bandwidth; verify the appliance vendor's compatibility list, as some storage vendors qualify only specific Hynix/Micron RDIMM SKUs.
推荐
推荐产品汇总
工程参考数据： HMCG88AEBRA168N ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | HMCG88AEBRA115N | HMCG88MEBRA107N | HMCG88MEBRA110N | HMCG88AEBRA168N-ATC |
|---|---|---|---|---|---|
| Package | 288-pin RDIMM | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same | 288-pin RDIMM - same |
| Brand | SK hynix | SK hynix | SK hynix | SK hynix | A-Tech (compatible brand) |
| Capacity | 32 GB | 32 GB | 32 GB | 32 GB | 32 GB |
| Speed | 4800 MHz (PC5-38400) | 4800 MHz (PC5-38400) | 4800 MHz (PC5-38400) | 4800 MHz (PC5-38400) | 4800 MHz (PC5-38400) |
| ECC Type | ECC Registered | ECC Registered | ECC Registered | ECC Registered | ECC Registered (EC8) |
| Voltage | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V |
关键差异点
- OEM SK hynix silicon with platform-level qualification （对比 HMCG88AEBRA168N-ATC)
- Current-generation DDR5-4800 bandwidth （对比 DDR4 RDIMM equivalents)
- ECC Registered protection with dual-rank interleave benefit （对比 Unbuffered DDR5 UDIMMs)
设计说明
The most frequent integration failure with HMCG88AEBRA168N is installing it in a platform that does not support ECC Registered DIMMs. RDIMMs are electrically incompatible with desktop boards requiring UDIMMs and cannot be mixed with LRDIMMs on most platforms. Before purchase, confirm the CPU memory controller (Intel Xeon Scalable or AMD EPYC generation) and the motherboard vendor's qualified vendor list (QVL) list DDR5-4800 RDIMMs. Installing an unsupported module type results in no-boot, and installing in an unqualified slot population may force downclocking below 4800 MT/s.
Population order matters for DDR5 signal integrity and achievable speed. Populate DIMM slots in the order specified by the server manual (typically white slots first, CPU-farthest channel priority) and keep modules identical within a channel. The HMCG88AEBRA168N's dual-rank 2Rx8 organization consumes more per-channel electrical budget than single-rank modules; on platforms that derate speed with two DIMMs per channel at dual rank, expect operation below 4800 MT/s unless the BIOS memory map allows it. Always run the vendor memory diagnostic (e.g., MemTest86 or OEM POST memory test) for a full pass after initial installation.
The HMCG88AEBRA168N operates at the DDR5 standard 1.1V with an on-module power management IC (PMIC), so no external VDDQ tuning is required. Estimated: at roughly 5-8 W per 32GB DDR5 RDIMM under load, a fully populated 16-DIMM server adds approximately 80-128 W to the thermal budget; verify chassis airflow and PSU headroom accordingly. For high-density deployments, enable platform power-capping and memory thermal throttling features in BIOS. Do not attempt manual voltage adjustment - DDR5 PMIC settings are managed by the platform BIOS and SPD data.
合规信息
Distributor listings do not publish explicit RoHS/REACH certificates for this module SKU; request a certificate of conformance from SK hynix or the distributor if documented compliance is required.
